Black-headed Night Monkey vs Cownose ray

Aotus nigriceps compared with Rhinoptera javanica

Key Differences

• Black-headed Night Monkey is Least Concern while Cownose ray is Endangered.

Taxonomic Classification

Rank	Black-headed Night Monkey	Cownose ray
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Elasmobranchii
Order	Primates (Primates)	Myliobatiformes (Myliobatiformes)
Family	Aotidae	Myliobatidae
Genus	Aotus	Rhinoptera
Species	Aotus nigriceps	Rhinoptera javanica

Evolutionary Relationship

Black-headed Night Monkey and Cownose ray share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Black-headed Night Monkey

LC — Least Concern

Cownose ray

EN — Endangered

Physical Characteristics

Attribute	Black-headed Night Monkey	Cownose ray
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black-headed Night Monkey

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Cownose ray

Habitat

Native to Asia, inhabiting ecosystems characteristic of the region.

Range

Found in Taiwan. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Black-headed Night Monkey

The Black-headed Night Monkey (Aotus nigriceps) is a species in the genus Aotus. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.